Messages in this thread | | | From | Jesse Barnes <> | Subject | Re: [patch 02/11] PAT x86: Map only usable memory in x86_64 identity map and kernel text | Date | Fri, 18 Jan 2008 08:46:02 -0800 |
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On Friday, January 18, 2008 5:12 am Andi Kleen wrote: > > (AMD machines apparently don't need it > > That's not true -- we had AMD systems in the past with broken MTRRs for > large memory configurations too, Mostly it was pre revE though.
It should be easy enough to enable it for AMD as well, and it would also be good to track down the one failure you found... I don't *think* the re-ordering of MTRR initialization should affect AMDs anymore than it does Intel, but someone familiar with the boot code would have to do a quick audit to be sure.
Jesse
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